Add TimeEntry MVC in memory

Author: mikegehard

build.gradle

@@ -9,6 +9,7 @@ repositories {
 
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-web")
+    compile("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.9.1")
 
     testCompile("org.springframework.boot:spring-boot-starter-test")
 }

src/main/java/io/pivotal/pal/tracker/InMemoryTimeEntryRepository.java

@@ -0,0 +1,54 @@
+package io.pivotal.pal.tracker;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+public class InMemoryTimeEntryRepository implements TimeEntryRepository {
+    private HashMap<Long, TimeEntry> timeEntries = new HashMap<>();
+
+    @Override
+    public TimeEntry create(TimeEntry timeEntry) {
+        Long id = timeEntries.size() + 1L;
+        TimeEntry newTimeEntry = new TimeEntry(
+            id,
+            timeEntry.getProjectId(),
+            timeEntry.getUserId(),
+            timeEntry.getDate(),
+            timeEntry.getHours()
+        );
+
+        timeEntries.put(id, newTimeEntry);
+        return newTimeEntry;
+    }
+
+    @Override
+    public TimeEntry find(Long id) {
+        return timeEntries.get(id);
+    }
+
+    @Override
+    public List<TimeEntry> list() {
+        return new ArrayList<>(timeEntries.values());
+    }
+
+    @Override
+    public TimeEntry update(Long id, TimeEntry timeEntry) {
+        TimeEntry updatedEntry = new TimeEntry(
+            id,
+            timeEntry.getProjectId(),
+            timeEntry.getUserId(),
+            timeEntry.getDate(),
+            timeEntry.getHours()
+        );
+
+        timeEntries.replace(id, updatedEntry);
+        return updatedEntry;
+    }
+
+    @Override
+    public void delete(Long id) {
+        timeEntries.remove(id);
+    }
+}
+

src/main/java/io/pivotal/pal/tracker/PalTrackerApplication.java

@@ -1,12 +1,32 @@
 package io.pivotal.pal.tracker;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
 
 @SpringBootApplication
 public class PalTrackerApplication {
 
     public static void main(String[] args) {
         SpringApplication.run(PalTrackerApplication.class, args);
     }
+
+    @Bean
+    TimeEntryRepository timeEntryRepository() {
+        return new InMemoryTimeEntryRepository();
+    }
+
+    @Bean
+    public ObjectMapper jsonObjectMapper() {
+        return Jackson2ObjectMapperBuilder.json()
+                .serializationInclusion(JsonInclude.Include.NON_NULL) // Don’t include null values
+                .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS) //ISODate
+                .modules(new JavaTimeModule())
+                .build();
+    }
 }

src/main/java/io/pivotal/pal/tracker/TimeEntry.java

@@ -0,0 +1,88 @@
+package io.pivotal.pal.tracker;
+
+import java.time.LocalDate;
+
+public class TimeEntry {
+    private long id;
+    private long projectId;
+    private long userId;
+    private LocalDate date;
+    private int hours;
+
+    public TimeEntry() {
+    }
+
+    public TimeEntry(long projectId, long userId, LocalDate date, int hours) {
+        this.projectId = projectId;
+        this.userId = userId;
+        this.date = date;
+        this.hours = hours;
+    }
+
+    public TimeEntry(long id, long projectId, long userId, LocalDate date, int hours) {
+        this.id = id;
+        this.projectId = projectId;
+        this.userId = userId;
+        this.date = date;
+        this.hours = hours;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public long getProjectId() {
+        return projectId;
+    }
+
+    public long getUserId() {
+        return userId;
+    }
+
+    public LocalDate getDate() {
+        return date;
+    }
+
+    public int getHours() {
+        return hours;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        TimeEntry timeEntry = (TimeEntry) o;
+
+        if (id != timeEntry.id) return false;
+        if (projectId != timeEntry.projectId) return false;
+        if (userId != timeEntry.userId) return false;
+        if (hours != timeEntry.hours) return false;
+        return date != null ? date.equals(timeEntry.date) : timeEntry.date == null;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = (int) (id ^ (id >>> 32));
+        result = 31 * result + (int) (projectId ^ (projectId >>> 32));
+        result = 31 * result + (int) (userId ^ (userId >>> 32));
+        result = 31 * result + (date != null ? date.hashCode() : 0);
+        result = 31 * result + hours;
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "TimeEntry{" +
+            "id=" + id +
+            ", projectId=" + projectId +
+            ", userId=" + userId +
+            ", date='" + date + '\'' +
+            ", hours=" + hours +
+            '}';
+    }
+}

src/main/java/io/pivotal/pal/tracker/TimeEntryController.java

@@ -0,0 +1,57 @@
+package io.pivotal.pal.tracker;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/time-entries")
+public class TimeEntryController {
+
+    private TimeEntryRepository timeEntriesRepo;
+
+    public TimeEntryController(TimeEntryRepository timeEntriesRepo) {
+        this.timeEntriesRepo = timeEntriesRepo;
+    }
+
+    @PostMapping
+    public ResponseEntity<TimeEntry> create(@RequestBody TimeEntry timeEntry) {
+        TimeEntry createdTimeEntry = timeEntriesRepo.create(timeEntry);
+
+        return new ResponseEntity<>(createdTimeEntry, HttpStatus.CREATED);
+    }
+
+    @GetMapping("{id}")
+    public ResponseEntity<TimeEntry> read(@PathVariable Long id) {
+        TimeEntry timeEntry = timeEntriesRepo.find(id);
+        if (timeEntry != null) {
+            return new ResponseEntity<>(timeEntry, HttpStatus.OK);
+        } else {
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+    }
+
+    @GetMapping
+    public ResponseEntity<List<TimeEntry>> list() {
+        return new ResponseEntity<>(timeEntriesRepo.list(), HttpStatus.OK);
+    }
+
+    @PutMapping("{id}")
+    public ResponseEntity<TimeEntry> update(@PathVariable Long id, @RequestBody TimeEntry timeEntry) {
+        TimeEntry updatedTimeEntry = timeEntriesRepo.update(id, timeEntry);
+        if (updatedTimeEntry != null) {
+            return new ResponseEntity<>(updatedTimeEntry, HttpStatus.OK);
+        } else {
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+    }
+
+    @DeleteMapping("{id}")
+    public ResponseEntity<TimeEntry> delete(@PathVariable Long id) {
+        timeEntriesRepo.delete(id);
+
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

src/main/java/io/pivotal/pal/tracker/TimeEntryRepository.java

@@ -0,0 +1,11 @@
+package io.pivotal.pal.tracker;
+
+import java.util.List;
+
+public interface TimeEntryRepository {
+    TimeEntry create(TimeEntry timeEntry);
+    TimeEntry find(Long id);
+    List<TimeEntry> list();
+    TimeEntry update(Long id, TimeEntry timeEntry);
+    void delete(Long id);
+}